[go: up one dir, main page]

EP3205398A1 - Verfahren zur herstellung eines zeolithkatalsysators - Google Patents

Verfahren zur herstellung eines zeolithkatalsysators Download PDF

Info

Publication number
EP3205398A1
EP3205398A1 EP17151392.2A EP17151392A EP3205398A1 EP 3205398 A1 EP3205398 A1 EP 3205398A1 EP 17151392 A EP17151392 A EP 17151392A EP 3205398 A1 EP3205398 A1 EP 3205398A1
Authority
EP
European Patent Office
Prior art keywords
zeolite
lta
manufacturing
lta zeolite
copper
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP17151392.2A
Other languages
English (en)
French (fr)
Inventor
Suk Bong Hong
Donghui JO
Taekyung RYU
Gi Tae Park
In-Sik Nam
Pyung Soon Kim
Chang Hwan Kim
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hyundai Motor Co
POSTECH Academy Industry Foundation
Kia Corp
Original Assignee
Hyundai Motor Co
Kia Motors Corp
POSTECH Academy Industry Foundation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020160165932A external-priority patent/KR20170095118A/ko
Application filed by Hyundai Motor Co, Kia Motors Corp, POSTECH Academy Industry Foundation filed Critical Hyundai Motor Co
Publication of EP3205398A1 publication Critical patent/EP3205398A1/de
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/0009—Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
    • B01J37/0018—Addition of a binding agent or of material, later completely removed among others as result of heat treatment, leaching or washing,(e.g. forming of pores; protective layer, desintegrating by heat)
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/041—Mesoporous materials having base exchange properties, e.g. Si/Al-MCM-41
    • B01J29/042—Mesoporous materials having base exchange properties, e.g. Si/Al-MCM-41 containing iron group metals, noble metals or copper
    • B01J29/044—Iron group metals or copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/70—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65
    • B01J29/72—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65 containing iron group metals, noble metals or copper
    • B01J29/76—Iron group metals or copper
    • B01J29/7607—A-type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9404—Removing only nitrogen compounds
    • B01D53/9409—Nitrogen oxides
    • B01D53/9413—Processes characterised by a specific catalyst
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9404—Removing only nitrogen compounds
    • B01D53/9409—Nitrogen oxides
    • B01D53/9413—Processes characterised by a specific catalyst
    • B01D53/9418—Processes characterised by a specific catalyst for removing nitrogen oxides by selective catalytic reduction [SCR] using a reducing agent in a lean exhaust gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/944—Simultaneously removing carbon monoxide, hydrocarbons or carbon making use of oxidation catalysts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9459—Removing one or more of nitrogen oxides, carbon monoxide, or hydrocarbons by multiple successive catalytic functions; systems with more than one different function, e.g. zone coated catalysts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • B01J23/72—Copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/064—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof containing iron group metals, noble metals or copper
    • B01J29/072—Iron group metals or copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/70—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65
    • B01J29/72—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65 containing iron group metals, noble metals or copper
    • B01J29/76—Iron group metals or copper
    • B01J29/763—CHA-type, e.g. Chabazite, LZ-218
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/80—Mixtures of different zeolites
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/19—Catalysts containing parts with different compositions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02—Impregnation, coating or precipitation
    • B01J37/0201—Impregnation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02—Impregnation, coating or precipitation
    • B01J37/024—Multiple impregnation or coating
    • B01J37/0246—Coatings comprising a zeolite
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/04—Mixing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/08—Heat treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/30—Ion-exchange
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B39/00—Compounds having molecular sieve and base-exchange properties, e.g. crystalline zeolites; Their preparation; After-treatment, e.g. ion-exchange or dealumination
    • C01B39/02—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof; Direct preparation thereof; Preparation thereof starting from a reaction mixture containing a crystalline zeolite of another type, or from preformed reactants; After-treatment thereof
    • C01B39/026—After-treatment
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B39/00—Compounds having molecular sieve and base-exchange properties, e.g. crystalline zeolites; Their preparation; After-treatment, e.g. ion-exchange or dealumination
    • C01B39/02—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof; Direct preparation thereof; Preparation thereof starting from a reaction mixture containing a crystalline zeolite of another type, or from preformed reactants; After-treatment thereof
    • C01B39/14—Type A
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B39/00—Compounds having molecular sieve and base-exchange properties, e.g. crystalline zeolites; Their preparation; After-treatment, e.g. ion-exchange or dealumination
    • C01B39/02—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof; Direct preparation thereof; Preparation thereof starting from a reaction mixture containing a crystalline zeolite of another type, or from preformed reactants; After-treatment thereof
    • C01B39/14—Type A
    • C01B39/145—Type A using at least one organic template directing agent
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B39/00—Compounds having molecular sieve and base-exchange properties, e.g. crystalline zeolites; Their preparation; After-treatment, e.g. ion-exchange or dealumination
    • C01B39/02—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof; Direct preparation thereof; Preparation thereof starting from a reaction mixture containing a crystalline zeolite of another type, or from preformed reactants; After-treatment thereof
    • C01B39/20—Faujasite type, e.g. type X or Y
    • C01B39/22—Type X
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion
    • F01N3/206—Adding periodically or continuously substances to exhaust gases for promoting purification, e.g. catalytic material in liquid form, NOx reducing agents
    • F01N3/2066—Selective catalytic reduction [SCR]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/20—Reductants
    • B01D2251/206—Ammonium compounds
    • B01D2251/2067—Urea
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20738—Iron
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20761—Copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/209—Other metals
    • B01D2255/2092—Aluminium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/30—Silica
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/50—Zeolites
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/90—Physical characteristics of catalysts
    • B01D2255/915—Catalyst supported on particulate filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/01—Engine exhaust gases
    • B01D2258/012—Diesel engines and lean burn gasoline engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2229/00—Aspects of molecular sieve catalysts not covered by B01J29/00
    • B01J2229/10—After treatment, characterised by the effect to be obtained
    • B01J2229/18—After treatment, characterised by the effect to be obtained to introduce other elements into or onto the molecular sieve itself
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2229/00—Aspects of molecular sieve catalysts not covered by B01J29/00
    • B01J2229/10—After treatment, characterised by the effect to be obtained
    • B01J2229/18—After treatment, characterised by the effect to be obtained to introduce other elements into or onto the molecular sieve itself
    • B01J2229/183—After treatment, characterised by the effect to be obtained to introduce other elements into or onto the molecular sieve itself in framework positions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2229/00—Aspects of molecular sieve catalysts not covered by B01J29/00
    • B01J2229/10—After treatment, characterised by the effect to be obtained
    • B01J2229/18—After treatment, characterised by the effect to be obtained to introduce other elements into or onto the molecular sieve itself
    • B01J2229/186—After treatment, characterised by the effect to be obtained to introduce other elements into or onto the molecular sieve itself not in framework positions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2229/00—Aspects of molecular sieve catalysts not covered by B01J29/00
    • B01J2229/10—After treatment, characterised by the effect to be obtained
    • B01J2229/20—After treatment, characterised by the effect to be obtained to introduce other elements in the catalyst composition comprising the molecular sieve, but not specially in or on the molecular sieve itself
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2229/00—Aspects of molecular sieve catalysts not covered by B01J29/00
    • B01J2229/30—After treatment, characterised by the means used
    • B01J2229/34—Reaction with organic or organometallic compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2229/00—Aspects of molecular sieve catalysts not covered by B01J29/00
    • B01J2229/30—After treatment, characterised by the means used
    • B01J2229/36—Steaming
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2229/00—Aspects of molecular sieve catalysts not covered by B01J29/00
    • B01J2229/30—After treatment, characterised by the means used
    • B01J2229/40—Special temperature treatment, i.e. other than just for template removal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N2370/00—Selection of materials for exhaust purification
    • F01N2370/02—Selection of materials for exhaust purification used in catalytic reactors
    • F01N2370/04—Zeolitic material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
    • F01N2570/14—Nitrogen oxides

Definitions

  • the present disclosure relates to a method for manufacturing a zeolite catalyst. More particularly, the present disclosure relates to a method for manufacturing a zeolite catalyst of which high-temperature performance can be improved.
  • Exhaust gas of conventaional diesel vehicles includes carbon monoxide, hydrocarbons, and nitrogen oxides as harmful materials. Nitrogen oxides cause environmental problems such as photochemical smog and acid rain, as well as human diseases. Therefore, there is a demand for improving engines and developing a post-treatment technology of exhaust gas.
  • SCR selective catalytic reduction
  • zeolite-based catalysts such as copper(Cu)/zeolite having excellent functions has been developed.
  • high temperature activity of such a catalyst is very important in treatment of high-temperature exhaust gas.
  • the present disclosure has been made in an effort to provide a method for manufacturing a zeolite catalyst of which high-temperature performance can be improved.
  • a method for manufacturing a zeolite catalyst according to an exemplary embodiment in the present disclosure includes: manufacturing a first Linde Type A (LTA) zeolite using an LTA seed; manufacturing a second LTA zeolite including ions by substituting ions to the first LTA zeolite; and manufacturing a copper LTA zeolite by performing copper ion exchange on the second LTA zeolite.
  • LTA Linde Type A
  • the manufacturing the second LTA zeolite may include injecting the first LTA zeolite into an ammonium salt solution to react them and then performing drying, and the ammonium salt may be ammonium nitrate (NH 4 NO 3 ).
  • the performing the copper ion exchange on the second LTA zeolite may include injecting the second LTA zeolite to a copper precursor solution and then stirring.
  • the method for manufacturing the zeolite catalyst may further include, after the manufacturing the copper LTA zeolite, performing heat treatment on the copper LTA zeolite.
  • the heat treatment may be performed while increasing a temperature to 400 °C to 750 °C at a rate of 1 to 30 °C/min.
  • the heat treatment may be performed for about 1 to 24 h.
  • a Si/Al ratio of the zeolite catalyst may be 5 to 30.
  • a method for manufacturing a zeolite catalyst according to another exemplary embodiment in the present disclosure includes manufacturing a first LTA zeolite using an LTA seed; manufacturing a second LTA zeolite including ions by substituting ions to the first LTA zeolite; and manufacturing an iron LTA zeolite by performing iron ion exchange on the second LTA zeolite.
  • the performing the iron ion exchange on the second LTA zeolite may further include mixing the second LTA zeolite with at least one of iron(III) nitrate nonahydrate (Fe(NO 3 ) 3 ⁇ 9H 2 O), sulfuric acid hydrate (FeSO 4 ⁇ 7H 2 O), iron(II) oxalate dihydrate (FeC 2 O 4 ⁇ 2H 2 O), and iron(III) chloride tetrahydrate (FeCl 2 ⁇ 4H 2 O) and stirring.
  • iron(III) nitrate nonahydrate Fe(NO 3 ) 3 ⁇ 9H 2 O
  • sulfuric acid hydrate FeSO 4 ⁇ 7H 2 O
  • iron(II) oxalate dihydrate FeC 2 O 4 ⁇ 2H 2 O
  • FeCl 2 ⁇ 4H 2 O iron(III) chloride tetrahydrate
  • the method for manufacturing the zeolite catalyst may further include, after the performing of the iron ion exchange on the second LTA zeolite, performing heat treatment on the iron LTA zeolite.
  • a method for manufacturing a zeolite catalyst includes: preparing a first mixture by mixing a 1,2-dimethyl-3-(4-methylbenzyl)imidazolium hydroxide aqueous solution, aluminum hydroxide (Al(OH) 3 ), and tetramethylammonium hydroxide pentahydrate; preparing a second mixture by mixing tetraethyl orthosilicate (TEOS) (Si(OC 2 H 5 ) 4 ) into the first mixture and then mixing an LTA seed thereto; preparing a third mixture by evaporating ethanol and water contained in the second mixture; preparing a first LTA zeolite by mixing a hydrofluoric aqueous solution into the third mixture, heating, and then performing drying; preparing a second LTA zeolite including NH 4 + ions by injecting the first LTA zeolite into an ammonium nitrate (NH 4 NO 3 ) solution to react them and then drying; and
  • a copper zeolite catalyst according to an exemplary embodiment in the present disclosure is manufactured by manufacturing a first Linde Type A (LTA) zeolite using an LTA seed; manufacturing a second LTA zeolite including ions by substituting ions to the first LTA zeolite; and manufacturing a copper LTA zeolite by performing copper ion exchange on the second LTA zeolite.
  • LTA Linde Type A
  • An iron zeolite catalyst according to another exemplary embodiment in the present disclosure is manufactured by manufacturing a first LTA zeolite using an LTA seed; manufacturing a second LTA zeolite including ions by substituting ions to the first LTA zeolite; and manufacturing an iron LTA zeolite by performing iron ion exchange on the second LTA zeolite.
  • a zeolite catalyst according to an exemplary embodiment in the present disclosure include LTA zeolite including copper ion, and the Si/Al ratio of the LTA zeolite may be 5 to 30.
  • a Linde Type A (LTA) zeolite may be used as the zeolite catalyst according to the present disclosure.
  • an LTA seed is mixed in a mixture of aluminum hydroxide (Al(OH) 3 ) and tetraethyl orthosilicate (Si(OC 2 H 5 ) 4 ).
  • a 1,2-dimethyl-3-(4-methylbenzyl)imidazolium hydroxide aqueous solution and aluminum hydroxide (Al(OH) 3 ) are mixed and the mixture is primarily stirred, and then tetramethylammonium hydroxide pentahydrate is additionally mixed and then secondarily stirred so as to prepare a first mixture.
  • Tetraethyl orthosilicate (TEOS) Si(OC 2 H 5 ) 4
  • TEOS Tetraethyl orthosilicate
  • 30-35 wt% of TEOS may be mixed with respect to the total weight of the second mixture, and the amount of LTA seed may be 2-6 wt% with respect to the total weight of the entire silicon included in LTA zeolite.
  • the third stirring may be performed for about 2 to 4 h, and the fourth stirring may be performed for about 20 to 28 h.
  • the second mixture is sufficiently heated to cause hydrolysis of the TEOS, and ethanol and water generated from the hydrolysis of TEOS are evaporated such that a third mixture is prepared.
  • the second mixture may be heated at a temperature between 70 °C and 90 °C.
  • a hydrofluoric aqueous solution is mixed in the third mixture, and a fourth mixture is prepared through heating, cleansing, and drying processes.
  • the third mixture may be heated for a constant time period at a temperature of about 150 °C to 200 °C, the cleansing process may be iteratively performed, and the drying process may be performed at room temperature.
  • heat treatment is additionally performed to remove an organic material from the fourth mixture such that the LTA zeolite for manufacturing the zeolite catalyst according to the exemplary embodiment in the present disclosure is manufactured.
  • the heat treatment may be performed at a temperature between 500 °C and 700 °C for about 6 to 10 h, and a Si/Al ratio of the LTA zeolite may be 5 to 30 in the exemplary embodiment.
  • the LTA zeolite is put into ammonium salt and refluxed, and then cleansing and drying processes are performed to prepare an LTA zeolite including NH 4 + ions (i.e., NH 4 type of LTA zeolite).
  • ammonium salt may be ammonium nitrate (NH 4 NO 3 ).
  • the reflux process may be performed at a temperature between 60 °C and 100 °C for about 5 to 7 h.
  • the dried NH 4 type of LTA zeolite including NH 4 + ions undergoes copper (Cu) ion exchange such that a copper (Cu) LTA zeolite including copper ions is prepared.
  • the dried NH 4 type of LTA zeolite including NH 4 + ions is injected into a copper precursor solution such as copper acetate monohydrate, copper nitride, copper nitrate, copper sulfate, and the like, and stirred, and then cleansing and drying processes are performed such that the Cu type of LTA zeolite can be prepared.
  • a copper precursor solution such as copper acetate monohydrate, copper nitride, copper nitrate, copper sulfate, and the like
  • the NH 4 type of LTA zeolite may undergo iron (Fe) ion exchange such that a Fe type of LTA zeolite including Fe ions can be prepared in another exemplary embodiment in the present disclosure.
  • iron chloride tetrahydrate FeCl 2 ⁇ 4H 2 O
  • copper acetate monohydrate FeCl 2 ⁇ 4H 2 O
  • the Cu type of LTA zeolite is heated in an oven with a gradually increasing temperature, and then a heat treatment process is performed such that the zeolite catalyst according to the exemplary embodiment in the present disclosure is manufactured.
  • the temperature may be increased to 400 to 750 °C at a rate of 1 to 30 °C/min, and then the heat treatment may be performed to about 1 to 24 h.
  • TEOS tetraethyl orthosilicate
  • the mixture to which the hydrofluoric aqueous solution was added was injected into a steel container and then heated at 175 °C for about 17 h while rotating the container at a speed of 60 rpm such that a solid product was generated, and the solid product was iteratively cleansed and then dried at room temperature.
  • the dried mixture was heat-treated at 600 °C in a muffle furnace for about 8 h to thereby manufacture an LTA zeolite, XRD analysis was performed on the manufactured zeolite to determine that the zeolite had an LTA structure, and a Si/Al ratio was determined to be 16 through ICP analysis.
  • the mixture was iteratively cleansed with a filter and distilled water and then dried at room temperature, and the cleansing and drying processes were repeated two times such that an NH 4 type of LTA zeolite was manufactured.
  • the dried NH 4 type of LTA zeolite was injected into 100 ml of a 0.01 M copper acetate monohydrate (Cu(OAc) 2 ⁇ H 2 O) solution and then stirred at room temperature for about 6 h.
  • FIG. 1 is a graph illustrating a result of an experiment performed to measure a removal rate of nitrogen oxide in the zeolite catalyst according to an exemplary embodiment in the present disclosure and in a zeolite catalyst according to a comparative example in various temperature ranges.
  • the horizontal axis denotes a temperature (°C) and the horizontal axis denotes a removal rate (%) of nitrogen oxide.
  • the zeolite catalysts of the exemplary embodiments and the comparative examples were supplied with nitrogen (N 2 ) at a gas hourly space velocity (GHSV) of 100,000, and a removal rate of nitrogen oxide was measured while changing the temperature between 150 °C and 550 °C.
  • nitrogen N 2
  • GHSV gas hourly space velocity
  • the nitrogen oxide removal rate of Exemplary Embodiment 1 is similar to that of Comparative Example 1 until the temperature reaches 400 °C, but when the temperature exceeds 400 °C, the nitrogen oxide removal rate of Exemplary Embodiment 1 is excellent compared to Comparative Example 1.
  • the nitrogen oxide removal rate was about 30 % better than Comparative Example 2 from a zone where the temperature exceeds 300 °C.
  • FIG. 2 is a block diagram of an exhaust gas purification device to which a zeolite catalyst according to an exemplary embodiment in the present disclosure is applied.
  • an exhaust gas generated from an engine 10 sequentially passes a turbocharger 20, a diesel oxidation catalyst (DOC) device 30, a catalyzed particulate filter 40, a spray nozzle 50, and a selective catalytic reduction (SCR) device 60 such that harmful materials in the exhaust gas are removed.
  • DOC diesel oxidation catalyst
  • SCR selective catalytic reduction
  • the turbocharger 20, the DOC device 30, the CPF 40, the spray nozzle 50, and the SCR device 60 may be installed in an exhaust pipe 70.
  • the engine 10 includes a plurality of cylinders (not shown) for combustion of an air mixture.
  • the cylinder is connected with an intake manifold (not shown) to receive the air mixture, and the intake manifold is connected with an intake pipe (not shown) to receive external air.
  • the cylinder is connected with an exhaust manifold (not shown) such that exhaust gas generated during a combustion process is collected in the exhaust manifold.
  • the exhaust manifold is connected with the exhaust pipe 70.
  • the turbocharger 20 rotates a turbine (not shown) using energy of the exhaust gas so as to increase the air intake amount.
  • the DOC device 30 may be provided in a rear end of the turbocharger 20.
  • HC and CO are oxidized and NO is oxidized to NO 2 .
  • at least one of the zeolite catalyst, which has ion-exchanged with a transition metal and manufactured according to the above-described method of the present disclosure and a noble metal may be included in the DOC device 30, and the zeolite catalyst manufactured according to the above-described method of the present disclosure may be used as a supporter of a cold start catalyst (CSC) that intercalates NOx generated at an initial cold-starting in the DOC device 30.
  • CSC cold start catalyst
  • the CPF 40 is provided in a rear end of the DOC device 30, and includes a catalyst filter CPF.
  • the CPF 40 collects particulate matter (PM) in the exhaust gas and regenerates the collected PM (i.e., soot).
  • the regeneration of soot is performed when a pressure difference between an inlet and an outlet of the CPF 40 is higher than a predetermined pressure.
  • the spray nozzle 50 is provided between the CPF 40 and the SCR device 60 and sprays a reducing agent to an exhaust oxidized in the DOC device 30 and the CPF 40.
  • the reducing agent may be ammonia, and generally urea is sprayed from the spray nozzle 50 and the sprayed urea is decomposed to ammonia.
  • the exhaust gas mixed with the reducing agent and NO 2 generated from the DPC device 30 is supplied to the SCR device 60.
  • the SCR device 60 is provided in a rear end of the spray nozzle 50, and includes the zeolite catalyst ion-exchanged with the transition metal, manufactured according to the above-described method of the present disclosure.
  • the SCR device 60 reduces NO x in the exhaust gas to nitrogen gas N 2 using NO 2 generated from the DOC device 30 and the reducing agent such that NO x in the exhaust gas can be reduced.
  • the Cu type of LTA zeolite catalyst according to the present disclosure which can be applied to the DOC device 30 and the SCR device 60, may be solely used or mixed with a Cu type of SSZ-13 catalyst.
  • the Cu type of SSZ-13 catalyst and the Cu type of LTA zeolite catalyst according to the exemplary embodiment in the present disclosure are mixed, low-temperature performance and high-temperature performance can be more improved.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Biomedical Technology (AREA)
  • Inorganic Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Toxicology (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Dispersion Chemistry (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Processes For Solid Components From Exhaust (AREA)
  • Exhaust Gas After Treatment (AREA)
EP17151392.2A 2016-02-12 2017-01-13 Verfahren zur herstellung eines zeolithkatalsysators Withdrawn EP3205398A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR20160016512 2016-02-12
KR1020160165932A KR20170095118A (ko) 2016-02-12 2016-12-07 촉매 및 촉매의 제조 방법

Publications (1)

Publication Number Publication Date
EP3205398A1 true EP3205398A1 (de) 2017-08-16

Family

ID=57821830

Family Applications (2)

Application Number Title Priority Date Filing Date
EP17151392.2A Withdrawn EP3205398A1 (de) 2016-02-12 2017-01-13 Verfahren zur herstellung eines zeolithkatalsysators
EP17151633.9A Active EP3205402B1 (de) 2016-02-12 2017-01-16 Katalysator und verfahren zur herstellung eines katalysators

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP17151633.9A Active EP3205402B1 (de) 2016-02-12 2017-01-16 Katalysator und verfahren zur herstellung eines katalysators

Country Status (5)

Country Link
US (2) US10518253B2 (de)
EP (2) EP3205398A1 (de)
JP (1) JP7001880B2 (de)
KR (1) KR102359951B1 (de)
CN (1) CN107081167B (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018081682A1 (en) * 2016-10-31 2018-05-03 Johnson Matthey Public Limited Company Lta catalysts having extra-framework iron and/or manganese for treating exhaust gas
EP3391964A1 (de) * 2017-04-20 2018-10-24 Hyundai Motor Company Katalysator und verfahren zur herstellung davon
CN109985662A (zh) * 2017-12-29 2019-07-09 华中科技大学 一种高硅Cu-LTA催化剂的制备方法及其应用

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7109023B2 (ja) * 2018-10-26 2022-07-29 東ソー株式会社 Ｒｈｏ型ゼオライト及びその製造方法
EP4609948A3 (de) * 2020-06-03 2025-11-19 Johnson Matthey Public Limited Company Verfahren zur herstellung eines katalysatorartikels
CN112844463B (zh) * 2021-01-20 2022-12-13 山东国瓷功能材料股份有限公司 一种Ce改性Cu-Fe-SSZ-13分子筛的制备方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3314752A (en) * 1961-08-30 1967-04-18 Mobil Oil Corp Synthetic zeolite
WO2000072965A1 (en) * 1999-05-27 2000-12-07 The Regents Of The University Of Michigan Zeolite catalysts for selective catalytic reduction of nitric oxide by ammonia and method of making
US20130089494A1 (en) * 2010-02-11 2013-04-11 Sud-Chemie Ip Gmbh & Co. Kg Copper-containing kfi-type zeolite and use in scr catalysis
EP2965813A1 (de) * 2009-12-18 2016-01-13 BASF Corporation Verfahren zur herstellung von kupferhaltigen molekularsieben mit cha-struktur

Family Cites Families (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5386693A (en) * 1976-12-21 1978-07-31 Kurita Water Ind Ltd Nitrogen oxides reduction catalyst
JPH01219013A (ja) * 1988-02-27 1989-09-01 Satoyuki Inui 銅含有ゼオライト、その製造法、該ゼオライトからなるｃｏガス中のｏ２の除去用触媒、およびｃｏガス中のｏ２の除去方法
JPH038447A (ja) * 1989-03-07 1991-01-16 Sakai Chem Ind Co Ltd オゾン分解用触媒
JPH07108136A (ja) * 1993-10-08 1995-04-25 Babcock Hitachi Kk メタン含有排ガスの脱硝方法
DE19939416A1 (de) * 1999-08-20 2001-02-22 Basf Ag Verfahren zur Herstellung eines kristallinen, zeolithischen Feststoffs
JP4818108B2 (ja) * 2003-07-03 2011-11-16 ザ、ユニバーシティー、コート、オブ、ザ、ユニバーシティー、オブ、セント、アンドルーズ 一酸化窒素放出用ゼオライト
GB0617070D0 (en) 2006-08-30 2006-10-11 Johnson Matthey Plc Low Temperature Hydrocarbon SCR
US7998423B2 (en) * 2007-02-27 2011-08-16 Basf Corporation SCR on low thermal mass filter substrates
US10384162B2 (en) * 2007-03-26 2019-08-20 Pq Corporation High silica chabazite for selective catalytic reduction, methods of making and using same
MX2009010369A (es) * 2007-03-26 2010-02-17 Pq Corp Material cristalino, microporoso, novedoso, que comprende un tamiz molecular o zeolita que tiene una estructura de abertura de poro de 8 anillos y metodos para hacer y utilizar los mismos.
KR20150052335A (ko) * 2007-04-26 2015-05-13 존슨 맛쎄이 퍼블릭 리미티드 컴파니 전이 금속／제올라이트 ｓｃｒ 촉매
DE102007030895A1 (de) 2007-07-03 2009-01-08 Süd-Chemie AG Abgaskatalysator für Salzsäure-haltige Abgase
US20090196812A1 (en) * 2008-01-31 2009-08-06 Basf Catalysts Llc Catalysts, Systems and Methods Utilizing Non-Zeolitic Metal-Containing Molecular Sieves Having the CHA Crystal Structure
WO2009141889A1 (ja) * 2008-05-20 2009-11-26 イビデン株式会社 ハニカム構造体
CN101678350A (zh) 2008-05-20 2010-03-24 揖斐电株式会社 蜂窝结构体
CN102099293B (zh) 2008-05-21 2014-03-26 巴斯夫欧洲公司 直接合成具有CHA结构的含Cu沸石的方法
EP2531280B1 (de) 2010-02-01 2014-12-24 Johnson Matthey Public Limited Company Nox-absorptionskatalysatoren
IN2013CN00093A (de) 2010-07-15 2015-07-03 Basf Se
WO2012037342A1 (en) * 2010-09-15 2012-03-22 Johnson Matthey Inc. Combined slip catalyst and hydrocarbon exotherm catalyst
EP2463028A1 (de) * 2010-12-11 2012-06-13 Umicore Ag & Co. Kg Verfahren zur Herstellung von metalldotierten Zeoliten und Zeotypen sowie dessen Anwendung zur katalytischen Entfernung von Stickstoffoxiden
KR101841317B1 (ko) * 2010-12-28 2018-03-22 토소가부시키가이샤 구리 및 알칼리 토금속을 담지한 제올라이트
US20120134916A1 (en) 2011-02-28 2012-05-31 Fedeyko Joseph M High-temperature scr catalyst
CN106423258B (zh) * 2011-06-05 2019-03-08 庄信万丰股份有限公司 用于处理废气的pgm催化剂
US9981256B2 (en) * 2011-12-02 2018-05-29 Pq Corporation Stabilized microporous crystalline material, the method of making the same, and the use for selective catalytic reduction of NOx
RU2015118441A (ru) 2012-10-19 2016-12-10 Басф Корпорейшн Мелкопористые молекулярные сита с 8-членными кольцами и с промотором для улучшения низкотемпературных характеристик
JP6029424B2 (ja) * 2012-11-12 2016-11-24 日揮触媒化成株式会社 内部に空洞を有するシリカ粒子の製造方法および内部に空洞を有するシリカ粒子、該シリカ粒子を含む被膜形成用塗布液および被膜付基材
US9700879B2 (en) * 2013-06-27 2017-07-11 California Institute Of Technology Molecular sieves with a Linde Type A topology and related methods and systems
US20150136660A1 (en) 2013-11-19 2015-05-21 Uop Llc Process for removing a contaminant from coal tar
GB2530129B (en) 2014-05-16 2016-10-26 Johnson Matthey Plc Catalytic article for treating exhaust gas
CN104128200B (zh) * 2014-07-22 2017-02-15 清华大学苏州汽车研究院（吴江） 铜基scr催化剂及其制备方法
CN104226361B (zh) * 2014-09-01 2017-06-20 清华大学苏州汽车研究院（吴江） 铁基scr催化剂及其制备方法
CN104741143A (zh) 2015-03-15 2015-07-01 北京工业大学 Cu-ZSM-5掺杂Zr和Sr复合催化剂的制备方法和应用
US10343925B2 (en) * 2016-02-12 2019-07-09 Hyundai Motor Company Method for preparing zeolite catalyst
KR101846914B1 (ko) 2016-10-21 2018-04-09 현대자동차 주식회사 촉매 및 촉매의 제조 방법
KR101846918B1 (ko) 2016-11-16 2018-04-09 현대자동차 주식회사 Cu/LTA 촉매 및 이를 포함하는 배기 시스템, 그리고 Cu/LTA 촉매 제조 방법

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3314752A (en) * 1961-08-30 1967-04-18 Mobil Oil Corp Synthetic zeolite
WO2000072965A1 (en) * 1999-05-27 2000-12-07 The Regents Of The University Of Michigan Zeolite catalysts for selective catalytic reduction of nitric oxide by ammonia and method of making
EP2965813A1 (de) * 2009-12-18 2016-01-13 BASF Corporation Verfahren zur herstellung von kupferhaltigen molekularsieben mit cha-struktur
US20130089494A1 (en) * 2010-02-11 2013-04-11 Sud-Chemie Ip Gmbh & Co. Kg Copper-containing kfi-type zeolite and use in scr catalysis

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
BADRAN A H ET AL: "Studies on the surface area of Fe(III) and Cu(II) ion exchanged zeolites of type A and X using sorption and x-ray powder diffraction", INORGANICA CHIMICA ACTA, ELSEVIER BV, NL, vol. 21, 1 January 1977 (1977-01-01), pages 233 - 238, XP026671593, ISSN: 0020-1693, [retrieved on 19770101], DOI: 10.1016/S0020-1693(00)86267-2 *
BEN W. BOAL ET AL: "Facile Synthesis and Catalysis of Pure-Silica and Heteroatom LTA", CHEMISTRY OF MATERIALS, vol. 27, no. 22, 24 November 2015 (2015-11-24), US, pages 7774 - 7779, XP055381605, ISSN: 0897-4756, DOI: 10.1021/acs.chemmater.5b03579 *
HAN SIK LEE ET AL: "Redox reactions of copper in zeolite A. Four crystal structures of vacuum-desolvated copper-exchanged zeolite A, Cu8-A", JOURNAL OF PHYSICAL CHEMISTRY, vol. 85, no. 4, 1 February 1981 (1981-02-01), US, pages 397 - 405, XP055381588, ISSN: 0022-3654, DOI: 10.1021/j150604a018 *
MAGGIE ZAMADICS ET AL: "Effect of divalent cations on the location and coordination of copper(II) ions in SAPO-42 molecular sieve", JOURNAL OF PHYSICAL CHEMISTRY, vol. 97, no. 13, 1 April 1993 (1993-04-01), US, pages 3359 - 3364, XP055381581, ISSN: 0022-3654, DOI: 10.1021/j100115a045 *
MICHAEL W ANDERSON ET AL: "Electron Spin Echo Study of Cu2+-Doped Zeolite K-ZK4: Cation Location and Adsorbate Interaction", J. PHYS. CHEM, 1 January 1986 (1986-01-01), pages 3206 - 3212, XP055379416, Retrieved from the Internet <URL:http://pubs.acs.org/doi/pdf/10.1021/j100405a032> [retrieved on 20170614] *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018081682A1 (en) * 2016-10-31 2018-05-03 Johnson Matthey Public Limited Company Lta catalysts having extra-framework iron and/or manganese for treating exhaust gas
GB2571039A (en) * 2016-10-31 2019-08-14 Johnson Matthey Plc LTA catalysts having extra-framework iron and/or manganese for treating exhaust gas
US10500574B2 (en) 2016-10-31 2019-12-10 Johnson Matthey Public Limited Company LTA catalysts having extra-framework iron and/or manganese for treating exhaust gas
EP3391964A1 (de) * 2017-04-20 2018-10-24 Hyundai Motor Company Katalysator und verfahren zur herstellung davon
CN109985662A (zh) * 2017-12-29 2019-07-09 华中科技大学 一种高硅Cu-LTA催化剂的制备方法及其应用
CN109985662B (zh) * 2017-12-29 2020-10-16 华中科技大学 一种高硅Cu-LTA催化剂的制备方法及其应用

Also Published As

Publication number Publication date
US20200086303A1 (en) 2020-03-19
EP3205402B1 (de) 2024-10-30
US10981153B2 (en) 2021-04-20
KR20210099535A (ko) 2021-08-12
CN107081167B (zh) 2022-05-24
CN107081167A (zh) 2017-08-22
EP3205402A1 (de) 2017-08-16
JP2017140614A (ja) 2017-08-17
KR102359951B1 (ko) 2022-02-09
JP7001880B2 (ja) 2022-01-20
US10518253B2 (en) 2019-12-31
US20170232428A1 (en) 2017-08-17

Similar Documents

Publication Publication Date Title
US10981153B2 (en) Catalyst and method for preparing catalyst
US10343925B2 (en) Method for preparing zeolite catalyst
EP2993322B1 (de) In-situ-regenerationsverfahren für einen denitrifikationskatalysator in abgasreinigungssystemen
US20110120093A1 (en) Process and apparatus for purifying exhaust gases from an internal combustion engine
CN101983103A (zh) 利用具有cha晶体结构的非沸石的含金属分子筛的催化剂、系统和方法
WO2011106058A1 (en) System and method for controlling nitrous oxide emissions of an internal combustion engine and regeneration of an exhaust treatment device
CN105683518B (zh) 具有改性贫燃NOx阱的排气系统和方法
CA2664390A1 (en) Catalysts, systems and methods to reduce nox in an exhaust gas stream
KR101846918B1 (ko) Cu/LTA 촉매 및 이를 포함하는 배기 시스템, 그리고 Cu/LTA 촉매 제조 방법
KR101865744B1 (ko) 배기가스 정화장치
EP3311916A1 (de) Katalysator und herstellungsverfahren dazu
Kim et al. Development of ultra-stable Cu-SCR aftertreatment system for advanced lean NOx control
KR101896334B1 (ko) 배기가스 정화장치
KR20180117929A (ko) 촉매 및 촉매의 제조 방법
JP2013015025A (ja) ディーゼルエンジンの排ガス浄化装置

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20180217